var fig_1=new Image(15,15)
fig_1.src="images/home_hr.gif"
var fig_2=new Image(15,15)
fig_2.src="images/home_hr_h.gif"
var fig_3=new Image(17,15)
fig_3.src="images/map_hr.gif"
var fig_4=new Image(17,15)
fig_4.src="images/map_hr_h.gif"
var fig_5=new Image(16,15)
fig_5.src="images/print_hr.gif"
var fig_6=new Image(16,15)
fig_6.src="images/print_hr_h.gif"


var relative_x=0;
var relative_y=0;
var dx=0;
var dy=24;

function setPosition() {

	var element=document.getElementById("mainMenu");
	relative_x=element.offsetLeft;
	relative_y=element.offsetTop;
}

function showSub(item) {

	setPosition();
	var element=document.getElementById("subMenu");
	element.style.left = relative_x+dx;
	element.style.top = relative_y+dy;
	element.style.visibility = "visible";

}

function hideSub() {

	var element=document.getElementById("subMenu");
	element.style.visibility = "hidden";

}

function hold() {

	var element=document.getElementById("subMenu");
	element.style.visibility = "visible";

}

function release() {

	var element=document.getElementById("subMenu");
	element.style.visibility = "hidden";

}